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OpenStudy (vortish):
rewrite the fractions with the least common denominator 1/3 , 4/5
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OpenStudy (anonymous):
What is LCM of 3 and 5?
OpenStudy (vortish):
15
OpenStudy (anonymous):
Correct. so both fractions should have 15 in denominator. Do you know what to do next?
OpenStudy (vortish):
no this is were i get stuck
OpenStudy (anonymous):
what do you multiply each denominator by to get 15? for the first fraction, you multiply 3 by 5 to get 15. so you also have to multiply the numerator by 5 to get 5. the new fraction is 5/15. try this with the second one
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OpenStudy (vortish):
if you do that then you get 20/15 for the second one unless you multiply that one by three and come out with 12/15
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